Istanbul Hezarfen Airfield (Turkish: İstanbul Hezarfen Havaalanı) (ICAO: LTBW) is a privately owned airport for general aviation located in Çatalca district of Istanbul, Turkey. The facility, one of the four airports in Istanbul, is named after Hezârfen Ahmet Çelebi, a legendary Ottoman aviator, who purportedly flew across the Bosporus in the 17th century, as told by a contemporary traveler Evliya Çelebi.